INGICS TECHNOLOGY SPECIFICATION Ver. 1C iwm021 Feb, 2015 Embedded WiFi Module for M2M and IOT size 20mmX15mm INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 1
Contents Contents Introduction Description Features Applications Block Diagram Typical Application Direct Link Local Network Cloud (TCP Client/ HTTP Client) Modbus Gateway Pin Definition Application Circuits Specification Absolute Maximum Rating Recommendable Operation Condition Current Consumption RF specification I/O specification Dimension Mechanical Drawing Recommend Footprint Revision History INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 2
Introduction Description iwm021 is a complete IEEE 802.11 b/g/n WiFi module for embedded wireless solution. It is a cost effective and low power solution for M2M and IOT application. It is designed for smart grid, smart home, security, building automation, toys, robots, remote health and wellness monitoring and other M2M and IOT applications. The module integrates an ARM Cortex-M3 MCU and Broadcom WiFi MAC/front end. It manages all the MAC and TCP/IP stack embedded. Except the on board PCB antenna, an external antenna connection pin is also provided to maximum the usage. User could choose one of the antenna to be used. Different level of wireless connection is supported. Direct connection could be a cable replacement in M2M scenario. Local networking could be an easy adoption for factory and building. We also provide cloud package to help customer to connect to Internet and manage through the internet. You just need to connect your system/device/asset to iwm021 through UART and then use provided web/app interface to manage your connection. Thus, it can be used to enable wireless connectivity to the simplest existing products with minimal engineering effort. INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 3
Features MCU: ARM 32-bit Cortex TM -M3 Network standard: 802.11b, 802.11g, 802.11n(single stream) Frequency band: 2.4GHz Transmit power: +17dBm @802.11b +13dBm @802.11g +11dBm @802.11n Minimum receiver sensitivity: -80dBm Hardware encryption: WPA/WPA2 Supported data rate: IEEE 802.11b, 1-11Mbps IEEE 802.11g, 6-54Mbps IEEE 802.11n(2.4GHz), 7.2-72.2 Mbps Antenna: on board PCB antenna external antenna pin Input/Output: UART GPIO Advanced 1X1 802.11n feature: full/half guard interval frame aggregation space time block coding(stbc) low density parity check(ldpc) encoding BRCM WICED fully compatible Web based configuration interface Ready-to-use firmware for different application(see typical application page) Operational temperature: -40ºC to 85ºC Certification: FCC and CE compliant. ( logo by request) Applications Lighting control Precision Agriculture Smart home Building automation Toys Health and wellness monitoring Security Robots Smart grid Instrument Industrial automation INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 4
Block Diagram Typical Application Direct Link Local Network INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 5
Cloud (TCP Client/ HTTP Client) Modbus Gateway INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 6
Pin Definition Pin # Pin Name Pin Type Description 1 GND P ground 2 EXT_ANT I External antenna input, 50 ohm impedance required 3 GND P ground 4 UART1_CTS I UART1 hardware flow control 5 UART1_RXD I UART1 receive data input 6 UART1_RTS/ RS485_DE O UART1 hardware flow control RS485 direction control : L:receiver enable; H:output enable 7 UART1_TXD O UART1 transmit data output 8 I/O0 I/O General purpose output only 9 I/O1 I/O General purpose output only 10 LED_STATUS O Indicates system ready, high active. 11 LED_ACTIVE O H: WiFi connected flash: data is transmitted through WiFi 12 JTAG_TCK I Debug port. Suggest to reserve a pad for debug purpose. 13 JTAG_TDO O Debug port. Suggest to reserve a pad for debug purpose. 14 JTAG_TMS I Debug port. Suggest to reserve a pad for debug purpose. 15 JTAG_TDI I Debug port. Suggest to reserve a pad for debug purpose. INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 7
16 VDD P +3.3V power input. Decoupling with 10U or larger ceramic capacitor 17 GND P ground 18 ID0 I For RS232 interface, connect this pin to high through a 10K resistor; For RS485 interface, connect this pin to low through a 10K resistor. 19 ID1 I For serial application, connect this pin to high through a 10K resistor. 20 DEFAULT/WPS I connect to WPS and factory default button(low active). short press: WPS; long press(>4 sec): reset system to factory default 21 EN_232 O Enable RS232 tranceiver. During power on, this pin is set to low to disable the RS232 transceiver. After power on, it will be high to enable RS232 transceiver. 22 RESET_N I Module reset, internal pull up. Suggest to reserve a pad for debug purpose. 23 GND P ground Application Circuits INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 8
Specification Absolute Maximum Rating Supply Power Storage Temperature Max. +3.46 Volt, Min. 0 Volt -40º to 85º Celsius Voltage Ripple +-2% Recommendable Operation Condition Operating Temperature Humidity -40º to 85º Celsius Max 95%, Non condensing, relative humidity VDD 3.3 Volt +- 5% Current Consumption Tx mode(11b,11mbps,max current) Tx mode(11g, 54Mbps, Max current) Tx mode(11n, MCS7, Max current) Rx mode Max. 355 ma, Typ. 295 ma Max. 245 ma, Typ. 175 ma Max. 235 ma, Typ. 165 ma Max. 100mA, Typ. 85mA RF specification Wireless Network modes Data rate Frequency band Number of selectable Sub channels Channel Bandwidth Modulation Maximum receive input level IEEE 802.11b/g/n(single stream) infrastructure, Ad-Hoc IEEE 802.11b, 1-11Mbps IEEE 802.11g, 6-54Mbps IEEE 802.11n(2.4GHz), 7.2-72.2 Mbps 2.400 2.484 GHz 14 channels 20MHz OFDM, DSSS (Direct Sequence Spread Spectrum), DBPSK, DQPSK, CCK, 16QAM, 64QAM - 10dBm (with PER < 8%@11 Mbps) - 20dBm (with PER < 10%@54 Mbps) - 20dBm (with PER < 10%@MCS7) INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 9
Minimum receive input level - 87dBm (typ. with PER < 8%@11 Mbps) - 70dBm (typ. with PER < 10%@54 Mbps) - 70dBm (typ. with PER < 10%@MCS7) Transmit Power 17dBm (typical)@ 802.11b 13dBm (typical)@ 802.11g 11dBm (typical)@ 802.11n Carrier Frequency Accuracy +/- 20ppm (crystal: 26MHz +/-10ppm in 25 o C) Antenna Range Security on board PCB antenna and external antenna optional up to 50M meters( in open area) WPA/WPA2 I/O specification General purpose input/output Serial interface level 0-3.3V maximum rating: 3.6V input low voltage: 0-0.8V input high voltage: 2V-3.3V output driving current: 4mA output low voltage: <0.4V output high voltage: >VDD-0.4V UART( support RS232/RS422/RS485) Baud rate: 9600 to 921.6 K Parity: None, Even, Odd Flow Control: RTS/CTS Dimension Dimensions L x W x H (mm) 20 x 15 x 2.15 (subject to change) INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 10
Mechanical Drawing INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 11
Recommend Footprint INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 12
Revision History Date Revision Changes Jul 2014 A Initial release Aug 4, 2014 A1 1. change model name from iwm-011 to iwm-020 2. add pin definition 3. add mechanical drawing 4. update dimension 5. add recommend footprint 6. update block diagram 7. modify description 8. modify I/O specification Sep 4, 2014 A2 1. Modify pin description and figure 2. Modify block diagram- remove I2S 3. Update typical application diagram 4. Change cover page format 5. Modify feature page 6. Change driving current to TBD in IO specification Oct 20, 2014 1 1. Change model name from iwm-020 to iwm021 2. Change the photo to new one 3. Remove wording relates diversity on page 3,4 4. Modify block diagram- change name 5. Change photo in typical application diagram 6. Modify pinout figure and pin definition 7. Modify mechanical drawing and footprint 8. Remove I2C and SPI from IO specification 9. Add application circuits section Oct 30, 2014 1A 1. Update pin definition description on JTAG, RESET, and MFG_MODE 2. Update application circuits on JTAG, RESET, and MFG_MODE 3. Update the driving current of general purpose input/output from TBD to 4mA Jan 23, 2015 1B 1. In feature page, remove I2S support 2. In feature page, remove features that are not yet supported 3. In feature page and specification page, remove WEP support in hardware encryption 4. In I/O specification, modify the serial interface baud rate 5. In pin definition and application circuits page, change IO1, IO2 name to IO0, IO1 for consistency 6. Change photo in cover page 7. In Specification, change antenna diversity to optional 8. In Specification, adds range information and channel bandwidth information Feb 2, 2015 1C 1. In pin definition, change MFG_MODE function to INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 13
EN_232 2. Modify application circuit at EN_232(originally MFG_MODE) 3. In pin description, change I/O1, I/O2 to only support output function INGICS TECHNOLOGY CO., LTD. SUPPORT@INGICS.COM WWW.INGICS.COM 14